Sysfs was designed to export the information present in the device tree which would then no longer clutter up procfs. procfs was cluttered with non-process information.There was no generic hotplug mechanism.No unified method of representing driver-device relationships existed. History ĭuring the 2.5 development cycle, the Linux driver model was introduced to fix the following shortcomings of version 2.4: Sysfs provides functionality similar to the sysctl mechanism found in BSD operating systems, with the difference that sysfs is implemented as a virtual file system instead of being a purpose-built kernel mechanism, and that, in Linux, sysctl configuration parameters are made available at /proc/sys/ as part of procfs, not sysfs which is mounted at /sys/. In addition to providing information about various devices and kernel subsystems, exported virtual files are also used for their configuration. Sysfs is a pseudo file system provided by the Linux kernel that exports information about various kernel subsystems, hardware devices, and associated device drivers from the kernel's device model to user space through virtual files. Pseudo file system provided by the Linux kernel
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